1364239 has 2 divisors, whose sum is σ = 1364240. Its totient is φ = 1364238.

The previous prime is 1364221. The next prime is 1364243. The reversal of 1364239 is 9324631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1364239 - 2⁹ = 1363727 is a prime.

It is a super-2 number, since 2×1364239² = 3722296098242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1364299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 682119 + 682120.

It is an arithmetic number, because the mean of its divisors is an integer number (682120).

2^1364239 is an apocalyptic number.

1364239 is a deficient number, since it is larger than the sum of its proper divisors (1).

1364239 is an equidigital number, since it uses as much as digits as its factorization.

1364239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 28.

The square root of 1364239 is about 1168.0064212152. The cubic root of 1364239 is about 110.9081565849.

The spelling of 1364239 in words is "one million, three hundred sixty-four thousand, two hundred thirty-nine".